Biogen Inc.
BIIB · Nasdaq
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Sep 11, 2026 | $216.75 | $219.76 | $214.71 | $217.15 | +0.80% | 1.08M |
| Sep 10, 2026 | $209.92 | $216.70 | $208.93 | $215.43 | +2.23% | 936.64K |
| Sep 9, 2026 | $210.50 | $213.48 | $209.00 | $210.73 | -0.83% | 694.67K |
| Sep 8, 2026 | $215.45 | $217.28 | $210.54 | $212.50 | -3.77% | 617.83K |
| Sep 4, 2026 | $221.15 | $223.82 | $219.82 | $220.83 | -1.64% | 465.11K |
| Sep 3, 2026 | $225.44 | $225.80 | $221.23 | $224.51 | +0.83% | 550.75K |
| Sep 2, 2026 | $218.20 | $225.59 | $216.97 | $222.67 | +3.07% | 1.27M |
| Sep 1, 2026 | $218.11 | $219.30 | $213.60 | $216.04 | -0.28% | 785.50K |
| Aug 31, 2026 | $216.47 | $218.89 | $213.58 | $216.65 | -0.85% | 831.00K |
| Aug 28, 2026 | $221.17 | $222.00 | $216.78 | $218.50 | -1.35% | 517.48K |
| Aug 27, 2026 | $219.39 | $222.11 | $217.53 | $221.50 | +0.19% | 497.52K |
| Aug 26, 2026 | $219.34 | $222.00 | $218.69 | $221.07 | +0.14% | 647.33K |
| Aug 25, 2026 | $218.93 | $222.85 | $218.00 | $220.77 | +1.21% | 495.44K |
| Aug 24, 2026 | $216.40 | $218.50 | $213.96 | $218.12 | +0.62% | 649.83K |
| Aug 21, 2026 | $217.76 | $219.12 | $215.00 | $216.78 | +1.13% | 722.35K |
| Aug 20, 2026 | $217.98 | $221.29 | $214.16 | $214.35 | -3.25% | 808.63K |
| Aug 19, 2026 | $215.33 | $222.15 | $215.08 | $221.56 | +4.24% | 886.91K |
| Aug 18, 2026 | $211.00 | $214.07 | $210.01 | $212.55 | +1.63% | 694.01K |
| Aug 17, 2026 | $208.36 | $210.49 | $207.62 | $209.15 | -0.32% | 617.24K |
| Aug 14, 2026 | $210.01 | $210.79 | $208.22 | $209.83 | -0.39% | 554.82K |
| Aug 13, 2026 | $212.98 | $215.61 | $208.79 | $210.65 | +0.85% | 860.09K |
| Aug 12, 2026 | $203.52 | $209.22 | $201.00 | $208.87 | +2.44% | 789.44K |
| Aug 11, 2026 | $206.63 | $207.57 | $203.53 | $203.89 | -1.56% | 936.83K |
| Aug 10, 2026 | $206.70 | $210.02 | $206.29 | $207.13 | -0.39% | 706.42K |
| Aug 7, 2026 | $207.38 | $208.31 | $204.16 | $207.94 | +0.80% | 840.57K |
| Aug 6, 2026 | $208.75 | $209.03 | $202.03 | $206.28 | -0.17% | 892.77K |
| Aug 5, 2026 | $210.60 | $212.18 | $205.80 | $206.63 | -0.87% | 873.78K |
| Aug 4, 2026 | $200.96 | $209.74 | $199.93 | $208.45 | +3.29% | 1.21M |
| Aug 3, 2026 | $203.34 | $203.85 | $199.58 | $201.82 | -0.56% | 940.99K |
| Jul 31, 2026 | $207.51 | $208.05 | $202.57 | $202.95 | -2.40% | 1.06M |
| Jul 30, 2026 | $204.38 | $210.19 | $203.09 | $207.93 | -0.62% | 892.94K |
| Jul 29, 2026 | $210.50 | $218.59 | $206.27 | $209.23 | +1.76% | 2.40M |
| Jul 28, 2026 | $201.01 | $207.72 | $199.40 | $205.61 | +2.73% | 1.83M |
| Jul 27, 2026 | $202.75 | $204.47 | $199.83 | $200.14 | -1.01% | 762.58K |
| Jul 24, 2026 | $202.24 | $203.30 | $200.04 | $202.19 | +0.78% | 596.37K |
| Jul 23, 2026 | $197.04 | $203.60 | $196.92 | $200.62 | +1.46% | 1.03M |
| Jul 22, 2026 | $203.70 | $204.31 | $197.40 | $197.74 | -2.67% | 841.35K |
| Jul 21, 2026 | $199.47 | $203.70 | $198.59 | $203.16 | +1.61% | 652.84K |
| Jul 20, 2026 | $204.08 | $205.65 | $199.62 | $199.95 | -2.93% | 963.09K |
| Jul 17, 2026 | $208.60 | $215.79 | $203.40 | $205.99 | -1.40% | 1.15M |
| Jul 16, 2026 | $198.26 | $209.64 | $194.67 | $208.92 | +5.92% | 1.87M |
| Jul 15, 2026 | $191.21 | $198.58 | $186.03 | $197.24 | +2.76% | 2.07M |
| Jul 14, 2026 | $200.34 | $202.00 | $189.40 | $191.95 | -8.17% | 3.90M |
| Jul 13, 2026 | $199.33 | $210.87 | $197.74 | $209.03 | +4.96% | 2.26M |
| Jul 10, 2026 | $197.63 | $199.98 | $194.37 | $199.15 | +0.12% | 1.13M |
| Jul 9, 2026 | $198.92 | $201.01 | $196.00 | $198.91 | -0.72% | 1.66M |
| Jul 8, 2026 | $204.86 | $206.75 | $198.93 | $200.36 | -2.60% | 1.95M |
| Jul 7, 2026 | $211.86 | $212.00 | $205.65 | $205.70 | -1.32% | 1.16M |
| Jul 6, 2026 | $215.95 | $215.95 | $208.27 | $208.46 | -3.54% | 1.22M |
| Jul 2, 2026 | $212.74 | $219.02 | $210.75 | $216.12 | +3.04% | 1.16M |
| Jul 1, 2026 | $215.25 | $215.81 | $209.67 | $209.74 | -2.93% | 1.14M |
| Jun 30, 2026 | $218.00 | $218.00 | $212.58 | $216.06 | -0.26% | 1.09M |
| Jun 29, 2026 | $215.74 | $219.72 | $214.08 | $216.63 | +0.28% | 1.28M |
| Jun 26, 2026 | $202.53 | $218.06 | $202.29 | $216.03 | +6.97% | 2.37M |
| Jun 25, 2026 | $201.63 | $206.67 | $200.20 | $201.96 | +1.19% | 1.33M |
| Jun 24, 2026 | $199.34 | $202.06 | $198.66 | $199.59 | +1.22% | 1.35M |
| Jun 23, 2026 | $198.88 | $201.22 | $197.01 | $197.19 | -1.26% | 1.05M |
| Jun 22, 2026 | $199.48 | $200.98 | $194.74 | $199.71 | +1.59% | 1.68M |
| Jun 18, 2026 | $200.22 | $200.99 | $193.20 | $196.58 | -1.05% | 1.73M |
| Jun 17, 2026 | $195.14 | $201.75 | $194.04 | $198.67 | — | 1.01M |
